Tryptone Soy Agar is a nutritious general-purpose medium supporting a wide range of organisms, this formulation has been modified by the addition of Tween 80 (Polysorbate 80) and Lecithin. It is recommended for use in environmental testing, particularly in areas subjected to surface disinfection, and conforms to the requirements of the British Pharmacopoeia for sterility testing of appropriate pharmaceutical products. Lecithin and Polysorbate 80 (Tween 80) inactivate surface disinfectants (Lecithin neutralises quaternary ammonium compounds and Tween 80 neutralises phenols, formalin, hexachlorophene and in combination with the Lecithin ethanol).
PP1350 – Tryptone Soy Agar with Lecithin & Tween 80
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|Storage Temp (°C)|
|Escherichia coli||NCTC 12241||Opaque/grey colonies|
|Staphylococcus aureus||NCTC 12981||Cream/White colonies|